diff options
Diffstat (limited to '2582/CH1/EX1.18/Ex1_18.sce')
| -rwxr-xr-x | 2582/CH1/EX1.18/Ex1_18.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2582/CH1/EX1.18/Ex1_18.sce b/2582/CH1/EX1.18/Ex1_18.sce new file mode 100755 index 000000000..49bba0720 --- /dev/null +++ b/2582/CH1/EX1.18/Ex1_18.sce @@ -0,0 +1,20 @@ +//Ex 1.18
+clc;clear;close;
+format('v',5);
+IREF=1;//mA
+IO2=20;//micro A
+IO3=40;//micro A
+VBE1=0.7;//V
+VT=26;//mV
+VCC=10;//V
+VEE=-VCC;//V
+R=(VCC-VBE1-VEE)/IREF;//kohm
+RE2=VT*10^-3/(IO2*10^-6)*log((IREF*10^-3)/(IO2*10^-6));//ohm
+RE2=RE2/1000;//kohm
+RE3=VT*10^-3/(IO3*10^-6)*log((IREF*10^-3)/(IO3*10^-6));//ohm
+RE3=RE3/1000;//kohm
+disp(RE3,RE2,R,"Value of resistance R, RE2 & RE3 for widlar current source design is(kohm) : ");
+VBE2=VBE1-RE2*IO2*10^-3;//V
+VBE3=VBE1-RE3*IO3*10^-3;//V
+format('v',7);
+disp(VBE3,VBE2,"Values of VBE2 & VBE3(V) : ");
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